Size Chart Featuring Light Elite cushioning, these socks contain targeted cushioning placed only where runners need it most, on the ball and heel of the foot. Smartwool has packed these socks chock full of smart features like the 4 Degree(R) elite fit system, men's-specific mesh ventilation zones, and a Virtually Seamless(TM) toe. A low cut height provides that ideal balance of protection and style. Features: - 4 Degree(TM) Elite Fit System For a dialed, performance-oriented fit with flex zone at ankle joint - Indestructawool(TM) technology features a patent-pending construction method for exceptional durability and comfort - Mesh ventilation zones provide optimum moisture management and maximum breathability - Maximum impact protection with targeted cushioning on the ball and heel of the foot. Designed specifically for runners. - Sock Height: Mini - 3.75" overall height - Virtually Seamless(TM) toe for enhanced comfort - Knit in USA of Imported Yarn: 55% Merino Wool, 42% Nylon, 3% Elastane - Last Chance: Discontinued Style - Only available to ship within the USA